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Mercedes-Benz · NHTSA safety record

2023 Mercedes-Benz EQB 300 4Matic

Every safety complaint, recall and defect investigation the US government holds on this vehicle.

Owners have filed 54 safety complaints about the 2023 Mercedes-Benz EQB 300 4Matic with the US government. Of those, 1 describes a crash and no death is recorded. 4 recall campaigns are open against it, covering the electrical system.

The most complained-about system is the electrical system, named in 39 complaints, 72% of the total.

Compiled from NHTSA's complaint, recall and investigation files · Covers November 2023 to September 2026 · How this is counted

What is on file

54 complaints on file

54

Complaints

1

Describe a crash

0

Mention fire

0

People injured

0

Deaths

A complaint is an unverified account by the person who filed it, not a finding of fault. One complaint is one ODI number, which is how NHTSA counts them.

A recall is the manufacturer conceding a defect, and the repair is free. Whether one covers your particular car is a question only its VIN can answer, because a campaign covers a production range rather than a model year.

Which system owners named

Complaints naming each system
ELECTRICAL SYSTEM 39 · 72%
FUEL/PROPULSION SYSTEM 9 · 17%
UNKNOWN OR OTHER 9 · 17%
ENGINE 6 · 11%
POWER TRAIN 5 · 9%
FORWARD COLLISION AVOIDANCE 3 · 6%
SERVICE BRAKES 2 · 4%
AIR BAGS 1 · 2%
BACK OVER PREVENTION 1 · 2%
LANE DEPARTURE 1 · 2%
SEAT BELTS 1 · 2%
VISIBILITY/WIPER 1 · 2%
0 19 38

Red marks a system with a recall campaign against it. One complaint can name several systems, so these add up to more than 54.

When the complaints arrived

By the year NHTSA received them

By the year NHTSA received them, which is not the year the failures happened. They peaked in 2026 at 38.

40 30 20 10
23 24 25 26

This is the year the complaint was filed, not the year the failure happened. The range runs from 2023 to 2026, the last of them a part year, which is why its column is drawn faint.

Crash test ratings

NHTSA New Car Assessment Program

NHTSA has not crash tested the 2023 Mercedes-Benz EQB 300 4Matic. Its New Car Assessment Program tests a selection of each year's vehicles and does not reach motorcycles, heavy trucks, motorhomes or most low-volume models, so an absence here says nothing about how the vehicle would perform. It is not a low score.

What owners have reported about this vehicle is below, and it is a different question: a crash test measures what happens to the people inside in a controlled impact, while a complaint records what broke during ordinary use.

Recall campaigns

4 on file

ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY

26V073000 · February 6, 2026

Park outside until repaired

The defect
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2023-2024 EQB 250+, 2022-2024 EQB 300 4MATIC, and EQB 350 4MATIC vehicles. The high voltage battery may fail internally and lead to a vehicle fire while parked or driving.
The risk
A vehicle fire while parked or driving can increase the risk of injury.
The remedy
Owners are advised to park outside and away from structures until the recall repair is complete. Also, owners are advised to only charge their vehicles to a maximum of 80% battery capacity until the remedy has been completed. Dealers will replace the high voltage battery, free of charge. Interim letters, notifying owners of the safety risk, were mailed March 13, 2026. Additional letters will be sent once the final remedy is available. This recall replaces recalls 25V050 and 25V894. Vehicles previously repaired under recall 25V050 or 25V894 will need to have the new remedy completed. Owners may contact MBUSA customer service at 1-800-367-6372. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning February 13, 2026.

Mercedes-Benz USA, LLC · up to 11,895 vehicles across all model years covered

ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY

25V894000 · December 19, 2025

Park outside until repaired

The defect
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2023 EQB 250, 2022-2023 EQB 300 4MATIC, and EQB 350 4MATIC vehicles. The high voltage battery may fail internally and lead to a vehicle fire while parked or driving.
The risk
A vehicle fire while parked or driving can increase the risk of injury.
The remedy
Owners are advised to only charge their vehicles to a maximum of 80% battery capacity until the repair has been completed. Vehicles previously repaired under Recall 25V050 will need to be repaired again. Dealers will update the battery management system software, free of charge. Owner notification letters were mailed February 6, 2026. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2025120005. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov on December 23, 2025.

Mercedes-Benz USA, LLC · up to 169 vehicles across all model years covered

ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY

25V487000 · July 25, 2025

Park outside until repaired

The defect
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2022-2023 EQB 350 4MATIC, and EQB 300 4MATIC vehicles. The bus bar in the high voltage battery may be secured with incorrect screws, which can cause the system to have a sudden loss of drive power without warning.
The risk
A loss of drive power increases the risk of a crash.
The remedy
Owners are advised to park outside until the recall repair is complete. Dealers will inspect and replace the high-voltage battery as necessary, free of charge. This will be a phased campaign, with the remedy becoming available in different phases based on model and model years. Owner notification letters were mailed January 9, 2026. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2025080004.

Mercedes-Benz USA, LLC · up to 660 vehicles across all model years covered

ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY

25V050000 · February 7, 2025

Park outside until repaired

The defect
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2022-2025 EQB 250, EQB 300 4MATIC, and EQB 350 4MATIC electric vehicles. The high voltage battery may fail internally and lead to a vehicle fire while parked or driving.
The risk
A vehicle fire while parked or driving can increase the risk of injury.
The remedy
Owners are advised to only charge their vehicles to a maximum of 80% battery capacity until the repair has been completed. Dealers will update the battery management system software, free of charge. Owner notification letters were mailed on May 22, 2025. This is a phased recall. Phase 1 owner letters were mailed on May 22, 2025. Phase 2 owner letters were mailed on October 31, 2025 and Phase 3 owner letters were mailed on December 12, 2025. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2025040005.

Mercedes-Benz USA, LLC · up to 12,236 vehicles across all model years covered

In owners’ own words

Quoted from the complaint file

Quoted from NHTSA's complaint file. These are unverified accounts by the people who filed them, not findings of fault.

SERVICE BRAKES

crash · towed · 20,000 miles

The contact owns a 2023 Mercedes-Benz EQB 300. The contact stated that his wife was parking inside the garage, and the brake pedal was depressed she felt the brake pedal was vibrating, and the vehicle then accelerated independently. The contact stated that after several times depressing the brake pedal, the vehicle was able to come to a stop. It was unknown if the warning lights illuminated. On a separate occasion, the contact was driving at 5 MPH coming to a stop, the brake pedal was released and felt abnormal vibration; the vehicle then accelerated independently. The vehicle jumped the curb and crashed into a tree trunk where it came to a stop. The driver’s and passenger’s side air bags

NHTSA complaint 11641405, quoted in part. Filed by an owner and not verified by NHTSA or by us.

ELECTRICAL SYSTEM
I own a 2023 Mercedes-Benz EQB 300 4MATIC. My vehicle has multiple unresolved high-voltage battery safety recalls. Recall 25V050/MBUSA campaign 2025040005 concerns a potential internal battery-cell short circuit and fire risk. I had the BMS software update performed, but Mercedes later issued recall 26V073 because the software remedy was not considered sufficient for all affected vehicles. Recall 26V073 requires complete high-voltage battery replacement. Until that repair is completed, Mercedes instructs owners to park outside and away from structures and limit charging to 80%. My vehicle also shows recall 25V487/MBUSA campaign 2025070009 as pending. This recall concerns a battery busbar

NHTSA complaint 11764816, quoted in part. Filed by an owner and not verified by NHTSA or by us.

ELECTRICAL SYSTEM
I am the owner of a 2023 Mercedes-Benz EQB that has been identified as being affected by the current high-voltage battery safety recall. I recently contacted my authorized Mercedes-Benz dealer regarding the recall and was informed that the recall is currently pending for my vehicle and that the permanent remedy is not expected to begin until approximately December. I understand that the interim safety guidance associated with this recall includes limiting charging to 80% and parking the vehicle outside and away from structures. I have a significant concern regarding the parking instruction. My vehicle is normally parked in an attached garage at my condominium. The garage is connected to my

NHTSA complaint 11761084, quoted in part. Filed by an owner and not verified by NHTSA or by us.

POWER TRAIN
The affected component is the high-voltage traction battery and related battery management and bus-bar connection systems. My vehicle is available for inspection upon request. I am reporting a safety concern because my vehicle is subject to NHTSA Recall 25V050, which identifies a risk that the high-voltage battery could fail internally and cause a fire while parked or driving. It is also subject to NHTSA Recall 25V487, which identifies a defect involving the high-voltage battery bus-bar connection that may cause a sudden loss of drive power without warning. A battery fire could endanger vehicle occupants and people or property near a parked vehicle. A sudden loss of propulsion while driving

NHTSA complaint 11760111, quoted in part. Filed by an owner and not verified by NHTSA or by us.

UNKNOWN OR OTHER
Vehicle: 2023 Mercedes‑Benz EQB VIN: [XXX] MBUSA Case #: XXX NHTSA Recall #: 26V073000 Mercedes‑Benz USA has mishandled recall 26V073000 (fire hazard) and left me without transportation. I was told the vehicle is unsafe to drive, which has caused significant anxiety, panic attacks, and ongoing stress because I have no safe way to commute or manage daily responsibilities. MBUSA repeatedly promised a loaner vehicle, but the dealership stated they were never contacted, had no instructions, and had no loaner available. MBUSA later said I could receive a rental car “upon eligible dealership,” but they did not specify which dealership, and after calling multiple Mercedes‑Benz locations, all

NHTSA complaint 11756741, quoted in part. Filed by an owner and not verified by NHTSA or by us.

ELECTRICAL SYSTEM
See attached document for complaint.

NHTSA complaint 11752312. Filed by an owner and not verified by NHTSA or by us.

FUEL/PROPULSION SYSTEM
There is a recall associated with this model that causes catastrophic stoppage without any ability to drive. My vehicle VIN does not have a recall according to your site. Despite this, my vehicle catastrophically stopped multiple times. It was repaired at least three times and still stopped in the middle of the highway. My partner and I were stopped on I-85S with no ability to move, honk, put on hazards. Cars zoomed past at full speed. I called 911 as we braced for impact. We are lucky to be alive and now suffer from severe trauma. They eventually closed the entire highway and dragged the vehicle to the shoulder almost 30 min later. Mbusa was aware of this defect before rejecting my lemon

NHTSA complaint 11751342, quoted in part. Filed by an owner and not verified by NHTSA or by us.

Compare

Other years of the Mercedes-Benz EQB 300 4Matic

Model year Complaints Recalls Deaths
2022 10 5 —

Other 2023 Mercedes-Benz models

GLC 300 55 EQB 250+ 29 EQS450 28 C 300 22 E 450 17 Sprinter 2500 17 Sprinter 3500 17 GLE 350 15

Complaints on file, same model year.

Every Mercedes-Benz on this site — 227 vehicles.

If this is your car and a dealer keeps failing to fix it, your state's lemon law may require the manufacturer to replace it or buy it back. How many repair attempts it takes, and how long you have to file, is set by the state you bought in and by nothing on this page.

Where these numbers come from

A complaint is one owner's account and has not been verified by NHTSA or by us. A vehicle with more complaints is not necessarily worse: models that sold in larger numbers collect more of them. How this is counted.

Compiled and maintained by
Independent developer and analyst